Kurtis Alexander

After the largest dam-removal effort in U.S. history, salmon appear to be thriving in the Klamath River, though some are taking a detour.

California water officials can move ahead with enforcement of the state’s landmark groundwater regulation after an appellate court ruled that a crackdown on pumping in Kings County is probably...

This acquisition, which will restore 17,000 acres to the Tule River Indian Tribe, is the largest-ever “land return” deal in the Sierra foothills, according to California Gov. Gavin Newsom’s...

California wildlife officials confirmed that they took the extraordinary step of killing four gray wolves near Lake Tahoe, saying the endangered species were too frequently preying on cattle.

California’s water board unveiled a new system to track water rights and use accurately — which should make it easier to regulate water during droughts.

Klamath River salmon have crossed a major threshold after dams were removed along the California-Oregon border, with the fish reaching the river’s headwaters for the first time in more than a...

A housing shortage crisis combined with an era of climate-fueled wildfires has made building homes a fraught undertaking across much of California.

The mighty glaciers of Yosemite National Park and the High Sierra date all the way back to the Ice Age, which has implications for the future.

National parks are providing bare-bones services with skeleton crews on the first day of the federal government’s partial shutdown.

A year after four dams came down on the Klamath River, a salmon was seen farther upstream than ever before.